Finding the Fourth Proportional to 2,909,938.40, 4,014,324.20 and 2,260,916.99
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Solution
The fourth proportional to 2,909,938.40, 4,014,324.20 and 2,260,916.99 is: 3,118,984.85
Step by Step Solution
- Step 1: Write the proportion equation
2,909,938.40 : 4,014,324.20 = 2,260,916.99 : x - Step 2: Convert to fraction form
2,909,938.40/4,014,324.20 = 2,260,916.99/x - Step 3: Cross multiply
2,909,938.40x = 4,014,324.20 × 2,260,916.99 - Step 4: Simplify right side
2,909,938.40x = 9,076,053,772,728.83 - Step 5: Solve for x
x = 9,076,053,772,728.83/2,909,938.40 - Step 6: Final answer
x = 3,118,984.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.